libavutil/intreadwrite.h File Reference

#include <stdint.h>
#include "libavutil/avconfig.h"
#include "attributes.h"
#include "bswap.h"
#include "config.h"

Go to the source code of this file.

Data Structures

union  av_alias
union  av_alias
union  av_alias

Defines

#define AV_RB16(x)
#define AV_WB16(p, darg)
#define AV_RL16(x)
#define AV_WL16(p, darg)
#define AV_RB32(x)
#define AV_WB32(p, darg)
#define AV_RL32(x)
#define AV_WL32(p, darg)
#define AV_RB64(x)
#define AV_WB64(p, darg)
#define AV_RL64(x)
#define AV_WL64(p, darg)
#define AV_RN(s, p)   AV_RL##s(p)
#define AV_WN(s, p, v)   AV_WL##s(p, v)
#define AV_RN16(p)   AV_RN(16, p)
#define AV_RN32(p)   AV_RN(32, p)
#define AV_RN64(p)   AV_RN(64, p)
#define AV_WN16(p, v)   AV_WN(16, p, v)
#define AV_WN32(p, v)   AV_WN(32, p, v)
#define AV_WN64(p, v)   AV_WN(64, p, v)
#define AV_RB(s, p)   av_bswap##s(AV_RN##s(p))
#define AV_WB(s, p, v)   AV_WN##s(p, av_bswap##s(v))
#define AV_RL(s, p)   AV_RN##s(p)
#define AV_WL(s, p, v)   AV_WN##s(p, v)
#define AV_RB8(x)   (((const uint8_t*)(x))[0])
#define AV_WB8(p, d)   do { ((uint8_t*)(p))[0] = (d); } while(0)
#define AV_RL8(x)   AV_RB8(x)
#define AV_WL8(p, d)   AV_WB8(p, d)
#define AV_RB24(x)
#define AV_WB24(p, d)
#define AV_RL24(x)
#define AV_WL24(p, d)
#define AV_RNA(s, p)   (((const av_alias##s*)(p))->u##s)
#define AV_WNA(s, p, v)   (((av_alias##s*)(p))->u##s = (v))
#define AV_RN16A(p)   AV_RNA(16, p)
#define AV_RN32A(p)   AV_RNA(32, p)
#define AV_RN64A(p)   AV_RNA(64, p)
#define AV_WN16A(p, v)   AV_WNA(16, p, v)
#define AV_WN32A(p, v)   AV_WNA(32, p, v)
#define AV_WN64A(p, v)   AV_WNA(64, p, v)
#define AV_COPY(n, d, s)   (((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n)
#define AV_COPY16(d, s)   AV_COPY(16, d, s)
#define AV_COPY32(d, s)   AV_COPY(32, d, s)
#define AV_COPY64(d, s)   AV_COPY(64, d, s)
#define AV_COPY128(d, s)
#define AV_SWAP(n, a, b)   FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b))
#define AV_SWAP64(a, b)   AV_SWAP(64, a, b)
#define AV_ZERO(n, d)   (((av_alias##n*)(d))->u##n = 0)
#define AV_ZERO16(d)   AV_ZERO(16, d)
#define AV_ZERO32(d)   AV_ZERO(32, d)
#define AV_ZERO64(d)   AV_ZERO(64, d)
#define AV_ZERO128(d)

Define Documentation

#define AV_COPY ( n,
d,
s   )     (((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n)

Definition at line 477 of file intreadwrite.h.

#define AV_COPY128 ( d,
s   ) 

Value:

do {                                       \
        AV_COPY64(d, s);                       \
        AV_COPY64((char*)(d)+8, (char*)(s)+8); \
    } while(0)

Definition at line 493 of file intreadwrite.h.

Referenced by backup_mb_border(), fill_decode_caches(), fill_filter_caches_inter(), and write_back_motion_list().

#define AV_COPY16 ( d,
s   )     AV_COPY(16, d, s)

Definition at line 481 of file intreadwrite.h.

Referenced by fill_decode_caches(), and write_back_motion_list().

#define AV_COPY32 ( d,
s   )     AV_COPY(32, d, s)

Definition at line 485 of file intreadwrite.h.

Referenced by fill_decode_caches(), fill_filter_caches(), fill_filter_caches_inter(), intra_predict(), MPV_motion_internal(), write_back_intra_pred_mode(), and write_back_non_zero_count().

#define AV_COPY64 ( d,
s   )     AV_COPY(64, d, s)

Definition at line 489 of file intreadwrite.h.

Referenced by backup_mb_border(), fill_decode_caches(), and write_back_motion_list().

#define AV_RB ( s,
p   )     av_bswap##s(AV_RN##s(p))

Definition at line 357 of file intreadwrite.h.

#define AV_RB16 ( x   ) 

Value:

((((const uint8_t*)(x))[0] << 8) |          \
      ((const uint8_t*)(x))[1])

Definition at line 208 of file intreadwrite.h.

#define AV_RB24 ( x   ) 

Value:

((((const uint8_t*)(x))[0] << 16) |         \
     (((const uint8_t*)(x))[1] <<  8) |         \
      ((const uint8_t*)(x))[2])

Definition at line 412 of file intreadwrite.h.

#define AV_RB32 ( x   ) 

Value:

(((uint32_t)((const uint8_t*)(x))[0] << 24) |    \
               (((const uint8_t*)(x))[1] << 16) |    \
               (((const uint8_t*)(x))[2] <<  8) |    \
                ((const uint8_t*)(x))[3])

Definition at line 234 of file intreadwrite.h.

#define AV_RB64 ( x   ) 

Value:

(((uint64_t)((const uint8_t*)(x))[0] << 56) |       \
     ((uint64_t)((const uint8_t*)(x))[1] << 48) |       \
     ((uint64_t)((const uint8_t*)(x))[2] << 40) |       \
     ((uint64_t)((const uint8_t*)(x))[3] << 32) |       \
     ((uint64_t)((const uint8_t*)(x))[4] << 24) |       \
     ((uint64_t)((const uint8_t*)(x))[5] << 16) |       \
     ((uint64_t)((const uint8_t*)(x))[6] <<  8) |       \
      (uint64_t)((const uint8_t*)(x))[7])

Definition at line 268 of file intreadwrite.h.

#define AV_RB8 ( x   )     (((const uint8_t*)(x))[0])

Definition at line 363 of file intreadwrite.h.

Referenced by ff_mov_read_stsd_entries(), and jpeg_parse_packet().

#define AV_RL ( s,
p   )     AV_RN##s(p)

Definition at line 359 of file intreadwrite.h.

#define AV_RL16 ( x   ) 

Value:

((((const uint8_t*)(x))[1] << 8) |          \
      ((const uint8_t*)(x))[0])

Definition at line 221 of file intreadwrite.h.

#define AV_RL24 ( x   ) 

Value:

((((const uint8_t*)(x))[2] << 16) |         \
     (((const uint8_t*)(x))[1] <<  8) |         \
      ((const uint8_t*)(x))[0])

Definition at line 426 of file intreadwrite.h.

#define AV_RL32 ( x   ) 

Value:

(((uint32_t)((const uint8_t*)(x))[3] << 24) |    \
               (((const uint8_t*)(x))[2] << 16) |    \
               (((const uint8_t*)(x))[1] <<  8) |    \
                ((const uint8_t*)(x))[0])

Definition at line 251 of file intreadwrite.h.

#define AV_RL64 ( x   ) 

Value:

(((uint64_t)((const uint8_t*)(x))[7] << 56) |       \
     ((uint64_t)((const uint8_t*)(x))[6] << 48) |       \
     ((uint64_t)((const uint8_t*)(x))[5] << 40) |       \
     ((uint64_t)((const uint8_t*)(x))[4] << 32) |       \
     ((uint64_t)((const uint8_t*)(x))[3] << 24) |       \
     ((uint64_t)((const uint8_t*)(x))[2] << 16) |       \
     ((uint64_t)((const uint8_t*)(x))[1] <<  8) |       \
      (uint64_t)((const uint8_t*)(x))[0])

Definition at line 293 of file intreadwrite.h.

#define AV_RL8 ( x   )     AV_RB8(x)

Definition at line 366 of file intreadwrite.h.

Referenced by libopus_dec_init(), and opus_header().

#define AV_RN ( s,
p   )     AV_RL##s(p)

Definition at line 321 of file intreadwrite.h.

#define AV_RN16 ( p   )     AV_RN(16, p)

Definition at line 328 of file intreadwrite.h.

Referenced by copy_block2(), and wtvfile_open2().

#define AV_RN16A ( p   )     AV_RNA(16, p)

Definition at line 448 of file intreadwrite.h.

Referenced by dctcoef_get(), and decode_frame().

#define AV_RN32 ( p   )     AV_RN(32, p)

Definition at line 332 of file intreadwrite.h.

Referenced by av_image_copy_to_buffer(), copy_block16(), copy_block17(), copy_block4(), copy_block8(), copy_block9(), pmp_probe(), wv_read_block_header(), wv_read_header(), and wv_read_packet().

#define AV_RN32A ( p   )     AV_RNA(32, p)

Definition at line 452 of file intreadwrite.h.

Referenced by dctcoef_get(), decode_mvs(), decode_splitmvs(), ff_h264_decode_nal(), output_plane(), pred_pskip_motion(), pred_spatial_direct_motion(), qmf_32_subbands(), vp8_mc_chroma(), vp8_mc_luma(), and xwd_encode_frame().

#define AV_RN64 ( p   )     AV_RN(64, p)

Definition at line 336 of file intreadwrite.h.

Referenced by addkey_s(), av_adler32_update(), ff_asfcrypt_dec(), ff_cavs_filter(), intra_pred_vert(), and libschroedinger_decode_frame().

#define AV_RN64A ( p   )     AV_RNA(64, p)

Definition at line 456 of file intreadwrite.h.

Referenced by decodeplane8(), ff_h264_decode_nal(), get_dct8x8_allowed(), and idctRowCondDC().

#define AV_RNA ( s,
p   )     (((const av_alias##s*)(p))->u##s)

Definition at line 444 of file intreadwrite.h.

#define AV_SWAP ( n,
a,
b   )     FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b))

Definition at line 500 of file intreadwrite.h.

#define AV_SWAP64 ( a,
b   )     AV_SWAP(64, a, b)

Definition at line 503 of file intreadwrite.h.

#define AV_WB ( s,
p,
v   )     AV_WN##s(p, av_bswap##s(v))

Definition at line 358 of file intreadwrite.h.

#define AV_WB16 ( p,
darg   ) 

Value:

do {                \
        unsigned d = (darg);                    \
        ((uint8_t*)(p))[1] = (d);               \
        ((uint8_t*)(p))[0] = (d)>>8;            \
    } while(0)

Definition at line 213 of file intreadwrite.h.

Referenced by adx_encode(), av_write_image_line(), concatenate_packet(), decode_frame(), dnxhd_write_header(), encode_slice(), jpeg_create_header(), jpeg_put_comments(), jpeg_table_header(), mov_read_chapters(), mov_text_encode_frame(), output_frame_end(), planarCopyWrapper(), prores_encode_picture(), qdm2_restore_block(), sap_write_header(), sctp_read(), sp5x_decode_frame(), spdif_header_dts4(), tcp_write_packet(), and text2movsub().

#define AV_WB24 ( p,
d   ) 

Value:

do {                   \
        ((uint8_t*)(p))[2] = (d);               \
        ((uint8_t*)(p))[1] = (d)>>8;            \
        ((uint8_t*)(p))[0] = (d)>>16;           \
    } while(0)

Definition at line 418 of file intreadwrite.h.

Referenced by decode_frame(), decode_region(), decode_region_intra(), decode_region_masked(), decode_rle(), draw_slice(), encode_frame(), end_frame(), ffm_write_packet(), fill_picture_rgb(), and find_expected_header().

#define AV_WB32 ( p,
darg   ) 

Value:

do {                \
        unsigned d = (darg);                    \
        ((uint8_t*)(p))[3] = (d);               \
        ((uint8_t*)(p))[2] = (d)>>8;            \
        ((uint8_t*)(p))[1] = (d)>>16;           \
        ((uint8_t*)(p))[0] = (d)>>24;           \
    } while(0)

Definition at line 241 of file intreadwrite.h.

Referenced by a64multi_encode_frame(), a64multi_init_encoder(), alac_encode_init(), alloc_and_copy(), av_blowfish_crypt(), av_sha_final(), decode_slice(), dnxhd_encode_picture(), dnxhd_write_header(), dv_read_header(), dv_write_pack(), dyn_packet_buf_write(), encode_frame(), ff_avc_write_annexb_extradata(), ffm_write_packet(), find_expected_header(), matroska_read_header(), mov_create_timecode_track(), mov_read_extradata(), mp3_header_decompress(), mpegts_write_packet_internal(), parse_playlist(), prores_encode_picture(), put_bits(), qdm2_parse_config(), read_kuki_chunk(), rtmp_send_hs_packet(), rtmp_server_handshake(), sunrast_encode_frame(), super2xsai(), svq3_parse_packet(), utvideo_encode_init(), xmv_fetch_video_packet(), xmv_read_extradata(), and xtea_crypt_ecb().

#define AV_WB64 ( p,
darg   ) 

Value:

do {                \
        uint64_t d = (darg);                    \
        ((uint8_t*)(p))[7] = (d);               \
        ((uint8_t*)(p))[6] = (d)>>8;            \
        ((uint8_t*)(p))[5] = (d)>>16;           \
        ((uint8_t*)(p))[4] = (d)>>24;           \
        ((uint8_t*)(p))[3] = (d)>>32;           \
        ((uint8_t*)(p))[2] = (d)>>40;           \
        ((uint8_t*)(p))[1] = (d)>>48;           \
        ((uint8_t*)(p))[0] = (d)>>56;           \
    } while(0)

Definition at line 279 of file intreadwrite.h.

Referenced by av_des_crypt_mac(), encode_frame(), ffm_write_packet(), mkv_write_header(), and mxf_gen_umid().

#define AV_WB8 ( p,
d   )     do { ((uint8_t*)(p))[0] = (d); } while(0)

Definition at line 364 of file intreadwrite.h.

Referenced by alac_encode_init().

#define AV_WL ( s,
p,
v   )     AV_WN##s(p, v)

Definition at line 360 of file intreadwrite.h.

#define AV_WL16 ( p,
darg   ) 

Value:

do {                \
        unsigned d = (darg);                    \
        ((uint8_t*)(p))[0] = (d);               \
        ((uint8_t*)(p))[1] = (d)>>8;            \
    } while(0)

Definition at line 226 of file intreadwrite.h.

Referenced by ape_read_header(), av_write_image_line(), bmp_encode_frame(), decode_frame(), encode_init(), oma_read_header(), planarCopyWrapper(), siff_read_packet(), smush_read_header(), targa_encode_frame(), wsaud_read_packet(), and wsvqa_read_packet().

#define AV_WL24 ( p,
d   ) 

Value:

do {                   \
        ((uint8_t*)(p))[0] = (d);               \
        ((uint8_t*)(p))[1] = (d)>>8;            \
        ((uint8_t*)(p))[2] = (d)>>16;           \
    } while(0)

Definition at line 432 of file intreadwrite.h.

Referenced by cdxl_decode_ham6(), cdxl_decode_ham8(), super2xsai(), and targa_encode_frame().

#define AV_WL32 ( p,
darg   ) 

Value:

do {                \
        unsigned d = (darg);                    \
        ((uint8_t*)(p))[0] = (d);               \
        ((uint8_t*)(p))[1] = (d)>>8;            \
        ((uint8_t*)(p))[2] = (d)>>16;           \
        ((uint8_t*)(p))[3] = (d)>>24;           \
    } while(0)

Definition at line 258 of file intreadwrite.h.

Referenced by aac_decode_frame_int(), add_metadata(), ape_read_packet(), av_image_copy_to_buffer(), av_lfg_init(), av_md5_final(), av_read_frame(), avi_read_tag(), celt_header(), encode_init(), ff_read_riff_info(), fourxm_read_header(), mov_read_extradata(), ogg_build_speex_headers(), oma_read_header(), png_write_chunk(), put_bits(), read_header(), read_packet(), rm_assemble_video_frame(), rtmpe9_sig(), rtp_asf_fix_header(), sbg_read_packet(), send_command_packet(), smush_read_header(), super2xsai(), svq3_decode_slice_header(), utvideo_encode_init(), v410_encode_frame(), vorbis_header(), and wv_read_packet().

#define AV_WL64 ( p,
darg   ) 

Value:

do {                \
        uint64_t d = (darg);                    \
        ((uint8_t*)(p))[0] = (d);               \
        ((uint8_t*)(p))[1] = (d)>>8;            \
        ((uint8_t*)(p))[2] = (d)>>16;           \
        ((uint8_t*)(p))[3] = (d)>>24;           \
        ((uint8_t*)(p))[4] = (d)>>32;           \
        ((uint8_t*)(p))[5] = (d)>>40;           \
        ((uint8_t*)(p))[6] = (d)>>48;           \
        ((uint8_t*)(p))[7] = (d)>>56;           \
    } while(0)

Definition at line 304 of file intreadwrite.h.

Referenced by ff_asfcrypt_dec(), and sbg_read_packet().

#define AV_WL8 ( p,
d   )     AV_WB8(p, d)

Definition at line 367 of file intreadwrite.h.

#define AV_WN ( s,
p,
v   )     AV_WL##s(p, v)

Definition at line 322 of file intreadwrite.h.

Referenced by libschroedinger_decode_frame().

#define AV_WN16 ( p,
v   )     AV_WN(16, p, v)

Definition at line 340 of file intreadwrite.h.

Referenced by copy_block2(), and fillPlane16().

#define AV_WN16A ( p,
v   )     AV_WNA(16, p, v)

Definition at line 460 of file intreadwrite.h.

Referenced by dctcoef_set(), decode_frame(), mss4_decode_dct_block(), and pcm_decode_frame().

#define AV_WN32 ( p,
v   )     AV_WN(32, p, v)

Definition at line 344 of file intreadwrite.h.

Referenced by av_base64_decode(), copy_block16(), copy_block17(), copy_block4(), copy_block8(), copy_block9(), import_palette(), and lag_decode_frame().

#define AV_WN32A ( p,
v   )     AV_WNA(32, p, v)

Definition at line 464 of file intreadwrite.h.

Referenced by dctcoef_set(), decode_coeffs(), decode_mb_mode(), decode_splitmvs(), ff_h264_decode_mb_cabac(), fill_decode_caches(), fill_filter_caches_inter(), intra_predict(), output_plane(), pcx_decode_frame(), pred4x4_horizontal_vp8_c(), pred4x4_vertical_vp8_c(), pred_temp_direct_motion(), qmf_32_subbands(), qtrle_decode_32bpp(), super2xsai(), vp8_decode_mb_row_no_filter(), and vp8_decode_mv_mb_modes().

#define AV_WN64 ( p,
v   )     AV_WN(64, p, v)

Definition at line 348 of file intreadwrite.h.

Referenced by addkey_d(), and vp8_decode_mb_row_no_filter().

#define AV_WN64A ( p,
v   )     AV_WNA(64, p, v)

Definition at line 468 of file intreadwrite.h.

Referenced by decodeplane8(), ff_h264_filter_mb(), fill_64(), filter_mb_dir(), and h264_filter_mb_fast_internal().

#define AV_WNA ( s,
p,
v   )     (((av_alias##s*)(p))->u##s = (v))

Definition at line 445 of file intreadwrite.h.

#define AV_ZERO ( n,
d   )     (((av_alias##n*)(d))->u##n = 0)

Definition at line 506 of file intreadwrite.h.

#define AV_ZERO128 ( d   ) 

Value:

do {                         \
        AV_ZERO64(d);            \
        AV_ZERO64((char*)(d)+8); \
    } while(0)

Definition at line 521 of file intreadwrite.h.

Referenced by decode_cabac_luma_residual(), decode_luma_residual(), fill_decode_caches(), fill_filter_caches_inter(), intra_predict(), svq3_decode_mb(), and write_back_motion_list().

#define AV_ZERO16 ( d   )     AV_ZERO(16, d)

Definition at line 509 of file intreadwrite.h.

Referenced by fill_decode_caches().

#define AV_ZERO32 ( d   )     AV_ZERO(32, d)

Definition at line 513 of file intreadwrite.h.

Referenced by decode_mb_mode(), decode_mvs(), decode_splitmvs(), fetch_diagonal_mv(), fill_decode_caches(), fill_filter_caches_inter(), and pred_spatial_direct_motion().

#define AV_ZERO64 ( d   )     AV_ZERO(64, d)

Definition at line 517 of file intreadwrite.h.

Referenced by fill_decode_caches(), filter_mb_dir(), and vp8_decode_mb_row_no_filter().

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